don<-read.table(file = "data/africa_pays_2018/data/africa_pays_2018.csv",
header=TRUE,
sep = ";",
dec = ",",
encoding = "UTF-8")
# Extraction de la variable
X<-don$LANGFR
X [1] 0 1 1 1 0 1 1 1 1 1 1 1 0 0 0 1 0 1 0 0 1 0 0 0 0 1 1 1 0 0 0 0 1 0 1 0 0 1
[39] 0 0 0 1 1 1 0 0 0 0 0
# Vérification du type
str(X) int [1:49] 0 1 1 1 0 1 1 1 1 1 ...